The US Department of Energy places a $24 million bet on concentrating solar power to decarbonize hydrogen production and other industries.
Supercritical CO2 is a liquid, not a gas. One of the advantages of supercritical CO2 systems is their small footprint, which could translate into savings on overall system costs and allow for a greater range of application.
3. Almost all of the global hydrogen supply comes from natural gas, and to a lesser extent coal and other fossil sources Renewable hydrogen can be produced from biogas and other organic wastes. Hydrogen can also be recycled from industrial waste, but for now much of the activity is centered on electrolysis, which deploys renewable energy to push hydrogen gas from water.
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